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Hardening processes

Boriding

Process Material property-changing process where a boriding mixture reacts with the material surface to create a hard surface.

Hammer peening

Process Material property-changing processing in which a ball-shaped punch strikes the material to create residual stresses in the surface.

Ion implantation

Process Material property-altering process where the material is heated in a vacuum chamber and bombarded by a high-energy ion beam to create a harder surface without creating a coating.

Laser hardening

Process Material property-changing method in which the material is heated with a laser beam and then rapidly cooled, leading to a change in martensite structure, and thus hardening the surface.

Laser peening

Process Material property-altering process where the material is first coated and then bombarded with a laser to form powerful pressure waves that causes compressive stresses in the material to a specific predetermined depth.

Roll peening

Process Material property-changing process in which a ball-shaped punch is pushed and pulled along the material to create residual stresses in the surface.

Roto-peening

Process Material property-changing process in which a tool with flaps rotate and turn on the material to provide a local hardening surface.

Shot peening

Process Material property-changing operation where shots are fired at a material so that its surface is partially deformed and there are residual stresses.